Flask for multiple molding



Nov; 19, 1929. 1* J. T. RAM$DEN 1,736,364 I h FLA-SK FOR MULTIPLEMOLDING Filed March 15, 1928 WIT/V566: F/6 3 I 4 (Jo/77? Zfi/mranPatented Nov. 19, 1929 UNITED STATES PATENT OFFICE JOHN T. RAMSDEN, 0FPHILADELPHIA, PENNSYLVANIA, ASSIGNOIR, TO THE TAIBOR MANUFACTURINGCOMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIAFLASK FOR MULTIPLE MOLDING Application filed March 15, 1928.

The principal objects of the present invention are to provide metalflasks especially adapted for multiple molding machines in which theflasks are stacked and simultaneously poured in groups after which theyare shaken out and removed, and to allow for expansion and contractionof the flasks without detriment.

The invention will be claimed at the end hereof but will be firstdescribed in connection with the accompanying drawing form ing parthereof and in which Figure 1 is a top or plan view of a flask embodyingfeatures of the invention.

Fig. 2 is an elevational view partly in central section illustrating astack of such flasks, and

Fig. 3 is a detail view of one of the parts.

In the drawing the metal flask for multiple molding has parallel top andbottom faces. In fact these faces are machined. Extending around theflask are externally projecting ribs 1 and 2 and they are deeper orwider at the center portions of the ends and sides of the flask thanthey are at the corners of the flask. The top rib l is provided at theends of the flask with upwardly projecting pins 3, shown as mounted inlugs a, forming as it were reinforcements of the rib 1. At the ends ofthe flask and on the under face of the rib 1 and on each side of the lug4 are provided inwardly and upwardly extending beveled surfaces 5 shownas provided on feet 9. The bottom rib 2 is provided with bushings ofwhich one, 6, is adapted to fit a pin like one of the pins 3, and ofwhich the other, 7, is relatively elongated in the direction of thelength of the flask to fit a pin 3 in such a way as to allow or afiordsome range of motion in the direction of the length of the flask. Thesebushings are shown as provided through lugs or reinforcements 10 on theunder side of the ribs 2.

In use and when the flasks are stacked, as shown in Fig, 2, theelongated bushing or opening 7 affords each flask suflicient movement inthe direction of its length and in respect to the bushing 6 which snuglyengages a pin 3 for accommodating for expansion and contraction due totemperature changes and Serial No. 261,767.

without detriment to the proper operation of the flasks in the moldingoperation. The beveled faces 5 receive the lifting fingers of a shakeout bail which is a well known adjunct of a multiple molding machine. Bythe described construction there is provided astrong, firm, durableflask well adapted for the production of excellent results and accuratein multiple molding machines.

I claim:

1. A metal flask for multiple molding having parallel top and bottomfaces and having around externally projecting ribs deeper at the cer.- sof the ends and. sides of the flask than at its corners, the top ribprovided at the ends of the flask with upwardly projecting pins and onits under face with upwardly and inwardly beveled surfaces, and thebottom rib provided with bushings of which one is adapted to fit a pinlike one of said pins and of which the other is relatively elongated inthe direct-ion of the length of the flask to compensate for expansion byaffording movement in respect to a pin like one of said pins.

2. A metal flask for multiple molding having parallel top and bottomfaces and having around it externally projecting ribs provided at theends of the flask with reinforcements or lugs, pins projecting upwardlyfrom the lugs of the upper r1b, and bushings provided in the lugs of thelower rib and of which one is adapted to fit a pin like one of said pinsand of which the other is relatively elongated in the direct-ion of thelength of the flask.

3. .A metal flask for multiple molding having parallel top and bottomfaces and having around it externally projecting ribs, pins projectingupwardly from the top rib and arranged centrally of the ends of theflasks, and bushings provided in the lower rib and arranged centrally ofthe ends of the flask and of which one is adapted to fit a pin like oneof said pins and of which the other is relatively elongated in thedirection of the length of" the flask.

JOHN T. RAMSDEN.

